Summer 2004 is a long time to wait for something that may or may not fill one's needs. Also, I doubt they'll have a Zerg-infested template or a Protoss Templar class. I care less about the rules of a Starcraft game and more about the flavor-rich setting.
In general, I'm not so sure we need a generic sci-fi SRD, but that's a whole 'nuther debate that I won't get into.
This just randomly popped into my head, but would anyone ever want to see races/classes/templates (Zerg-infested... oooh) statted out for d20 for Starcraft?